MESON Chess Problem Database

Problem Display
PID: 61957 (Q7/2NR4/1B1bp3/2r2pP1/1p1k1p1R/1P2ppN1/2P2P2/1nK5 w - - 0 1)

Bouchez, Laurent

Morice, Jean

1st HM., Les Echos du Touquet, 1997

Q7/2NR4/1B1bp3/2r2pP1/1p1k1p1R/1P2ppN1/2P2P2/1nK5

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Qa1#
    • 1...Ke5
      • 2.Qh8#
    • 1...Sd2
      • 2.Qa1#
    • 1...e5
      • 2.Sb5#
  • Tries
    • 1.Sxe6+?
      • 1...Kc3
        • 2.Qa1#
      • 1...Ke5!
    • 1.Bxc5+?
      • 1...Kc3
        • 2.Sb5#
        • 2.Qa1#
      • 1...Ke5
        • 2.Qh8#
      • 1...Kxc5!
    • 1.Rxf4+?
      • 1...Kc3
        • 2.Qa1#
      • 1...Ke5!
    • 1.Rxd6+?
      • 1...Kc3
        • 2.Rd3#
        • 2.Qa1#
      • 1...Ke5!
    • 1.Qxf3?
      • threat
        • 2.Qxe3#
      • 1...Kc3
        • 2.Se2#
      • 1...Ke5
        • 2.Qxf4#
      • 1...e2
        • 2.Qe3#
      • 1...exf2!
    • 1.Qe4+?
      • 1...Kc3
        • 2.Qd3#
      • 1...fxe4!
    • 1.Qd5+?
      • 1...Kc3
        • 2.Qd3#
      • 1...exd5!
    • 1.Qa5?
      • threat
        • 2.Qxc5#
      • 1...Kc3
        • 2.Qa1#
      • 1...Ke5!
    • 1.fxe3+?
      • 1...Kc3
        • 2.Qa1#
      • 1...Ke5
        • 2.Qh8#
      • 1...Kxe3!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qxc5#
      • 1...Kc3
        • 2.Sb5#
      • 1...Ke5
        • 2.Qxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • K(e);N_PINP(B),N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT::QAB(K)
    • K(e);N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT::QAB(K)
    • S(a);N_GUARD::QAB(K)
    • P(j);SBLOCK::S(I)
  • Tries
    • Try
      • S(I);CHECK,XP(j)
      • Vars
        • K(e);N_PINP(B),N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT::QAB(K)
      • Refutation
        • K(e);N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT
    • Try
      • B(H);CHECK,N_SPINP(B),XR(g)
      • Vars
        • K(e);N_SPINB(i),N_SPINP(f),S_FLIGHT::QAB(K)
      • Refutation
        • K(e);N_SPINB(i),N_SPINP(f),S_FLIGHT,XB(H)
    • Try
      • R(F);CHECK,XP(f)
      • Vars
        • K(e);N_PINP(B),N_SPINB(i),N_SPINR(g),S_FLIGHT::QAB(K)
      • Refutation
        • K(e);N_SPINB(i),N_SPINR(g),S_FLIGHT
    • Try
      • R(J);CHECK,XB(i)
      • Refutation
        • K(e);N_SPINP(f),N_SPINR(g),S_FLIGHT
    • Try
      • Q(K);XP(c)
      • Threat
        • QAB1(K),XP(b)
      • Vars
        • K(e);N_PINP(B),N_SPINB(i),N_SPINP(f),N_SPINR(g),P_SPINP(b),S_FLIGHT::S(E)
        • K(e);N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT::QAB1(K),XP(f)
        • P(b);::QAB1(K)
      • Refutation
        • P(b);XP(C)
    • Try
      • Q(K);CHECK,N_PINP(f)
      • Vars
        • K(e);N_PINP(B),N_SPINB(i),N_SPINR(g),S_FLIGHT::QAR1(K)
      • Refutation
        • P(h);XQ(K)
    • Try
      • Q(K);CHECK,N_PINB(i)
      • Vars
        • K(e);N_PINP(B),N_SPINP(f),N_SPINR(g),OGATE,S_FLIGHT::QAR1(K)
      • Refutation
        • P(j);XQ(K)
    • Try
      • Q(K);
      • Threat
        • QAB1(K),XR(g)
      • Vars
        • K(e);N_PINP(B),N_SPINB(i),N_SPINP(f),N_SPINR(g),P_SPINP(d),S_FLIGHT::QAB(K)
      • Refutation
        • K(e);N_SPINB(i),N_SPINP(f),S_FLIGHT
    • Try
      • P(C);CHECK,XP(b)
      • Vars
        • K(e);N_PINP(B),N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT::QAB(K)
        • K(e);N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT::QAB(K)
      • Refutation
        • K(e);N_SPINB(i),N_SPINP(f),S_FLIGHT,XP(C)
  • Actual
    • Q(K);
    • Threat
      • QAB1(K),XR(g)
    • Vars
      • K(e);N_PINP(B),N_SPINB(i),N_SPINP(f),S_FLIGHT::S(I)
      • K(e);N_SPINB(i),N_SPINP(f),N_SPINR(g),S_FLIGHT::QAB1(K),XB(i)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).